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Ultraviolet Spectroscopy of Cool Stars from IUE

Published online by Cambridge University Press:  12 April 2016

C. Jordan ,
P. Judge  and
S. Johansson
C. Jordan
Affiliation:
Department of Theoretical Physics, University of Oxford, UK.
P. Judge
Affiliation:
Department of Theoretical Physics, University of Oxford, UK.
S. Johansson
Affiliation:
Fysiska Institutionen, Lunds University, Sweden

Abstract

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Observations of cool stars with the IUE satellite have shown that although main sequence stars have uv spectra similar to that of the sun, the spectra of the giants and supergiants are dominated by lines of neutral atoms and singly charged ions. The atmospheres of the low gravity stars are greatly extended and there is a large opacity in the stronger lines. This leads to multiple scattering and the appearance of many transitions through line ‘leakage’.

A review is given of how high resolution IUE spectra have allowed line identifications to be established and some current problems are discussed.

The spectroscopic diagnostic techniques for the low gravity, low density atmospheres are also briefly outlined.

Type
Session 3. Non-Solar Astrophysics
Information
International Astronomical Union Colloquium , Volume 86: Eighth International Colloquium on Ultraviolet and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas , 1984 , pp. 51 - 58
Copyright
Copyright © Naval Research Laboratory 1984. Publication courtesy of the Naval Research Laboratory, Washington, DC.

References

Ayres, T.R., Moos, H.W. and Linsky, J.L. 1981, Astrophys. J., 248, L137.CrossRefGoogle Scholar
Ayres, T.R., Jordan, C., Judge, P., Brown, A. and Linsky, J.L. 1984, In preparation.Google Scholar
Bowen, I.S. 1947, Publ. Astr. Soc. Pacif., 59, 196.CrossRefGoogle Scholar
Brown, A. and Jordan, C. 1980, Mon. Not. R. astr. Soc. 191, 37P.Google Scholar
Brown, A., Jordan, C. and Wilson, R. 1979, Proc. Symp. The First Year of IUE, UCL (Ed. Willis, A.), p.232.Google Scholar
Brown, A., Ferraz, M.C. de, M. and Jordan, C. 1981, Proc. Symp. The Universe at Ultraviolet Wavelengths; The First Two Years of IUE (Ed. Chapman, R.) NASA C.P. 2171, p297.Google Scholar
Brown, A., Jordan, C., Millar, T.J., Gondhalekar, P. and Wilson, R. 1981, Nature, 290, 34.CrossRefGoogle Scholar
Brown, A., Jordan, C., Stencel, R.E., Linsky, J.L. and Ayres, T.R. 1984, Astrophys. J. In press.Google Scholar
Carpenter, K.G. and Wing, R.F. 1979, Bull. Am. Astr. Soc. 11, 419.Google Scholar
Dupree, A.k.. 1982, in ‘Proc. Second Cambridge Workshop on Cool Stars; Stellar Systems and the Sun, SAO Special Rep. 392, Vol. II, p. 3.Google Scholar
Engvold, O., Jensen, F. and Moe, O.K. 1983, Paper presented at Nordic Astronomy Meeting 15-17 August, Oslo.Google Scholar
Gahm, G.F. 1974, Astron, and Astrophys. Suppl. 18, 259.Google Scholar
Garstang, R.H. 1961, Proc. Camb. Phil. Soc. 57, 115.CrossRefGoogle Scholar
Hagen, W., Black, J.H., Dupree, A.K. and Holm, A.V. 1980, Astrophys. J., 238, 203.CrossRefGoogle Scholar
Haisch, B.M., Linsky, J.L., Weinstein, A. and Shine, R.A. 1977, As trophys. J., 214, 785.Google Scholar
Hayes, M.A. and Nussbaumer, H. 1984, Astron. Astrophys. 134, 193.Google Scholar
Johansson, S. 1983, Mon. Not. R. astr. Soc. 205, 71P.CrossRefGoogle Scholar
Johansson, S. 1984, Proc. 4th European IUE Meeting, Rome, In press.Google Scholar
Johansson, S. and Jordan, C. 1984, Mon. Not. R. astr. Soc. 210, 239.CrossRefGoogle Scholar
Jordan, C. and Judge, P. 1984, Physica Scripta, T8, 43.CrossRefGoogle Scholar
Jordan, C., Brueckner, G.E., Bartoe, J.D.F., Sandlin, G.D. and Van Hoosier, M.E. 1978a, Astrophys. J. 226, 687.CrossRefGoogle Scholar
Jordan, C., Bartoe, J-D.F., Brueckner, G.E., Sandlin, G.D. and Van Hoosier, M.E. 1978b, Astrophys. J. 223, L51.Google Scholar
Judge, P. 1984, in ‘Proc. Third Cambridge Workshop on Cool Stars’. Springer-Verlag (Ed. Balinnas, S.L. and Hartmann, L.) p. 353.Google Scholar
Keenan, F.P., Berrington, K.A., Burke, P.G., Kingston, A.E. and Dufton, P.L. 1984, Mon. Not. R. astr. Soc. 207, 459.CrossRefGoogle Scholar
Linsky, J.L. and Haisch, B.M. 1979, Astrophys. J., 229, L27.CrossRefGoogle Scholar
Linsky, J.L. et al. 1978, Nature, 225, 19.Google Scholar
McKinney, W.R., Moos, H.W. and Giles, J.W. 1976, Astrophys. J., 205, 848.CrossRefGoogle Scholar
Müller, D. 1968, Z. Naturforsch, 23a, 1707.Google Scholar
Nussbaumer, H. and Schild, H. 1979, Astron. Astrophys. 75, LI7.Google Scholar
Nussbaumer, H. and Schild, H. 1981, Astron. Astrophys. 101, 118.Google Scholar
Nussbaumer, H., Pettini, M. and Storey, R.J. 1981, Astron. Astrophys. 102, 351.Google Scholar
Penston, M.V., Benvenuti, P., Cassatella, A., Heck, A., Selvelli, P., Macchetto, F., Ponz, D., Jordan, C., Cramer, N., Rufener, F. and Manfroid, J., 1983, Mon. Not. R. astr. Soc., 202, 833.CrossRefGoogle Scholar
Stalio, R. and Selvelli, P.L. 1980, in ‘The Universe at Ultraviolet Wavelengths: First Two Years of IUE’, NASA CP 2171, p201.Google Scholar
Stencel, R.E., Linsky, J.L., Brown, A., Jordan, C., Carpenter, K.G., Wing, R.F. and Czyzak, S. 1981, Mon. Not. R. astr. Soc., 196, 47P.CrossRefGoogle Scholar
Tondello, G. 1972, Astrophys. J. 172, 771.CrossRefGoogle Scholar
Tossi, G.P., Huber, M.C.E. and Pauls, U. 1984, Astron. Astrophys. In Press.Google Scholar
Van der Hucht, K.A., Stencel, R.E., Haisch, B.M. and Kondo, Y. 1979, Astr. Astrophys. Suppl. 36, 377.Google Scholar
Viotti, R., Giagrande, A., Ricciardi, D., Altamore, A., Casatella, A., Friedjung, M., Muratorio, G., 1980, Proc. Second IUE European Conference, p39.Google Scholar